Mercury ion recovery using natural and crosslinked chitosan membranes

被引：64
|
作者：
Vieira, RS [1 ]
Beppu, MM [1 ]
机构：
[1] Univ Estadual Campinas, Fac Engn Quim, Dept Termofluidodinam, BR-13081970 Campinas, SP, Brazil
来源：
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY | 2005年 / 11卷
关键词：
adsorption; desorption; chitosan; crosslinking; mercury; AQUEOUS-SOLUTION; METAL-IONS; REMOVAL; LINKING; EQUILIBRIUM; ADSORPTION; SORPTION; CHITIN; BEADS;
D O I：
10.1007/s10450-005-6015-3
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The adsorption and desorption of Hg(II) ions onto natural and crosslinked chitosan membranes were investigated. Batch adsorption experiments were carried out as function of pH, concentration of Hg(II) ions, type of crosslinking (glutaraldehyde (GLA) or epichlorohydrin (ECH)) and desorbent solution (NaCl (1M) or EDTA (10(-4) M)). Isotherm studies indicated that Hg(II) ions can be effectively removed by chitosan membranes, mainly by the glutaraldehyde-crosslinked chitosan, at pH = 6.0, and can be easily removed by elution with NaCl (1M) solution.
引用
收藏
页码：731 / 736
页数：6
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